Passive Structural Control Strategies Using Seismic Steel Energy Dissipators

The force versus deformation relationships of a steel frame constructed with the proposed hysteretic energy dissipators (HED) are characterized by a tri-linear model indicating the distinct yielding of the HED and the frame. The optimal stiffness and strength ratios between the HED and the frame are recognized from parametric analysis of the nonlinear response spectra. A design algorithm is presented to illustrate the strategies incorporated into the design of frame buildings for seismic response control, particularly on the reduction of the inelastic deformational demands imposed on the beam-to-column connections of a six-story example steel moment frame.